Cost

Drop ship vendor (DSV) suppliers can update the cost for a single item or multiple items in bulk with the Cost API.

Using the Cost API requires approval from the user’s Walmart category manager. The Cost API returns an error if used without approval.

To request Cost API approval, the drop ship vendor (DSV) must submit a request and open a support case:

1. Email the Walmart merchant (category manager) to initiate the approval request. Email approval from the associated category manager is required to submit a support request.
2. Create a partner support case for internal teams to obtain access to the Cost API. Attach the category manager’s approval email to the support case.  
3. Provide this information to partner support for the case:
   • Subject: Request Cost API Access
   • Categories: 
     • Integration Questions
     • Issues > API > Cost API 
4. Once the support case is completed, users can access the Cost API to update cost for their items.

Drop ship vendors (DSVs) can update cost for items in bulk with the Cost API.

The JSON schema allows users to update an array of cost objects, including item stock keeping unit (SKU), item unit cost, and ship node (`shipNode`) to indicate the distributor identifier.

Call DSV Cost API

Use the Cost API to update the item cost.

1. Call POST /v3/feeds.
2. Set the required feed type parameter (feedType) to “cost” (to indicate the type of feed content will be item cost). For example: POST /v3/feeds?feedType=cost

For more details such as request parameters, sample responses, and JSON schema field descriptions, see POST Cost API.

Example: Sample Request Payload

{
  "header": {
    "version": "1.0"
  },
  "Cost": [
    {
      "sku": "1487132332472",
      "shipNode": "82374285488579",
      "unitCost": {
        "amount": 9.99,
        "currency": "USD"
      }
    },
    {
      "sku": "GUS25667",
      "shipNode": "82374285488579",
      "unitCost": {
        "amount": 4,
        "currency": "USD"
      }
    }
  ]
}